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MY DESKTOP IS NOT INSTALLING A SECURITY UPDATE

george ochieng 0 Reputation points
2026-03-07T21:50:44.93+00:00 
 UNABLE TO INSTALL THIS PARTICULAR SECURITY UPDATE ON MY DESKTOP

my desktop is having a problem installing this update 2026-02 Preview Update (KB5077241) (26200.7922)

Windows Insider program | Windows Insider preview | Install, activate, and Windows update
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  1. Q&A Assist
    2026-03-07T21:50:57.18+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    KB5077241 is a non-security preview cumulative update for Windows 11 versions 24H2 and 25H2 (OS builds 26200.7922 and 26100.7922). It is optional and not required for security, so the device can safely continue to run without it if installation fails.

    For Insider/preview builds, the most reliable way to install this specific update is to use the Microsoft Update Catalog package and DISM, which also ensures any prerequisite MSU files are applied in the correct order.

    Follow these steps for an x64 PC (most desktops) or arm64 if applicable:

    1. Download the update package(s)
      1. Open the Microsoft Update Catalog.
      2. Download all MSU files for KB5077241 that match the device architecture (x64 or arm64).
      3. Save them into a single folder, for example: C:\Packages.
    2. Install using DISM (recommended)
      1. Open an elevated Command Prompt (Run as administrator).
      2. For x64 systems, run: 
              DISM /Online /Add-Package /PackagePath:C:\Packages\Windows11.0-KB5077241-x64.msu
        For arm64 systems, run: 
              DISM /Online /Add-Package /PackagePath:C:\Packages\Windows11.0-KB5077241-arm64.msu
      3. Wait for DISM to complete and then restart the PC if prompted.
      Alternatively, from an elevated PowerShell prompt: 
         Add-WindowsPackage -Online -PackagePath "C:\Packages\Windows11.0-KB5077241-x64.msu"
      (or the arm64 file as appropriate).
    3. If installation still fails
      1. Ensure the latest combined Servicing Stack Update (SSU) + LCU is installed. KB5077241 already includes SSU KB5077371 (26100.7911), but if the servicing stack is damaged, general SSU guidance applies.
      2. If the system fails to boot or loops after attempting the update, recover using:
        • Safe Mode, then install the latest SSU as described in the SSU FAQ; or
        • Windows Recovery Environment (WinRE) and run: 
                  DISM /image:C:\ /cleanup-image /revertpendingactions
          then restart and install the latest SSU before retrying the update.
    4. Optional: use Windows Update UI If DISM succeeds or after repairing the servicing stack, open: Start > Settings > Update & Security > Windows Update and check under Optional updates available to install KB5077241 from Windows Update.

    If the update continues to fail but the system is otherwise stable and up to date with security updates, it is acceptable to skip this preview build and wait for the next cumulative/security release.

    References:

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